Generator type burner



Nov.5,1946. l J, L. BREES' f 2,410,478-

. GENERATOR TYE BURNER 'i Filed Aug. e, 194s' Patented Nov. 5, 1946 2,410,478 GENERATOR TYPE BURNER James L. Breese, Santa. Fe, N. Mex., asslgnor to Oil Devices, Santa Fe, N. Mex., a limited partnership of Illinois Application August 6, 1943, Serial No. 497,589

My invention relates to an improvement in burners and is shown in connection vwith burners of a generator type.

One purpose is to provide an improved forced draft of a generator burner.

Another purpose is to provide a compact body which may be employed as a blast burner or blow torch.

Another purpose is to provide an improved horizontal burner with forced draft.

Other purposes will appear from time to time throughout the specification and claims.

My invention is illustrated more or less diagrammatically in the accompanying drawing,

wherein: A

Figure 1 is a plan view;

Figure Z-is a vertical section;

Flgure 3 is a section along the line 3-3 of` Figure 2;

Figure 4 is a section along the line 4 6 of Figure 2;

Figure 5 is a section similar to Figure 4, with parts in a different position.

Like parts are indicated by like characters 7 Claims. v(Cl. 15S- 91) 2 in the reservoir. The passage Il then curves upwardly and to the right, referring to the position of the parts as shown in Figure 2, and extends to or into the bottom of the p ot 8 as at- I3.

The opposite end of the passage is partially closed by a circularilange I4 with a. central aper` ture I5.

Mounted in the aperture'isa booster motor and fan unit, including a motor base I6, a motor-I1 thereon, a fan shaft I8, driven by the motor, and fan vanes I9. The motor and fan unit may be mounted for ready removal in the aperture I5 by means of any suitable system'oi spring wires 20, inwardly notched as at 2 I-to engage the edges of the aperture I5. A coil spring 22 may be compressed between the abutment 28,

. xed on the base-I6 and the abutment 2| on one of, the springs or spring arms 20. The eiiect is'to maintain the motor and fan unit locked in position by the engagement of the notches 2l with the edges of the aperture I5. However, the user l can readily remove the motor and fan unit by squeezing any one of the wires 20 and thus freeing the notches 2| from the' edge of the aperture. f

Any suitable conductive connections and selected power source may be employed, the details of which do not form part o! the present invention and are therefore not disclosed.

with itsremovable cap s, as shown in Figure l'.

Positioned on the top of the reservoir I is an air housing l shown as having a at bottom 5 adapted to be secured to the nat top of the container I.

VIt will be understood, ofcourse, that the size,

shape and proportion of the parts may be widely varied. 1 l i Positioned in any suitable manner in one end ofthe housingl Il is aburner pot S. This pot is shown as having an inwardly curved or tapered discharge portion l, the inner edge of which denes the central aperture 8. It will be observed that the wall of the pot `8 is spaced inwardly from the wall of the housing 4. The pot Wallisprovided with a plurality of air inlets 9, located-at various distances from the bottom or inner end ofthe pot and a terminal outer row of air inlet apertures I shown. in Figure 2 have a greater diameter and are more closely placed than the apertures 9. The interior of the pot 8 is put in` communication with the interior of the reservoir I by a-curved passage member Il, one end of which is herein shown as of maximum diameter, being openV to the interior of the reservoir I, as at I2, at a level above the level of the fuel The combustion 'of the burner is controlled by varying the supply of air to the interior of the generator chamber I. I illustrate forexample a iixed outer tube 30 vwhich extends downwardly through the housing Il and into the interior of the generatorreservoir I. -It is slotted as at 3l, 32 to provide an air inlet to the space within the generator` I and above the level of the fuel therein. v. 'I'he height of the slots is sulcient to permitthe device to work through a substantial variation in the level of fuel within the member I. Air passes into the tub'e 30 through one ormore apertures 33 in vthe portion of the tube located in the ulterior of the, air housing Il. The rate of air ilow through the slots 3l and. 32 may be controlled by a rotatable inner shutter tube 35, which is slotted as at 36, 31. The inner tube 35 is ro tated and supported by a control rod 38 which is secured to the tube by any suitable cross members which are'shown as including a bottom hub 39 and radial arms 60. At the upper end of the tube is a limiting abutment 4I which engages the closed top 4Z of the outer tube 30,. The member M may be provided with a handle d3 for the rotation of the inner tube or shutter 35. The top 42 of the outer tube may be made removable, if desired, so that the device may be disassembled.

Combustion may be initiated byv pouring an inammable liquid down through `thexouter tube y place, flow upwardly and outwardly along the passage il and into' the interior of the pot i.

There additional air is supplied to the mixture through the apertures 8 and a final air supply through the apertures l0. The air is supplied under pressure through these apertures, in response to the rotation of the fan vanes I9. It will be understood that, once combustion has been initiated, the inner shutter tube 35 is -put in position. Its length is preferably such as not to mask the air inlet apertures 33. Part of the air delivered by the fan varies flows through the apertures and down into the member l. Part of the air is delivered through the apertures 9 and il and the fuelvaporized in the chamber` l flows to the interior of the pot for conversion by the additional air supply to a completely combustible gas.

I have illustrated the device in a form practical for use as a blow torch for delivering a hot ame .under pressure. to a point or area to be highly heated. It will be understood, however, that the parts may beso sized and proportioned as to adapt the device for a heater or` burner for use in furnaces, stoves and the like.

It will be observed that' I have provided a unitary air suppLv system which delivers air, preferably under pressure, both to a burner or burner pot and to a generator chamber in .communication with the pot. It will also be observed that the passage of air under pressure about the pot not only supplies air necessary for nal and complete combustion of the vaporized fuel but provides a cooling curtain between the burner pot and the source of fuel supply.

It will be 'realized that whereas I have described and illustrated an operative device, still many changes might be made in the size, shape, arlrangement. proportion and disposition of the chamber, means for delivering vaporlzed fuel from the interior of the fuel vaporlzer to the interior of the combustion chamber, lincluding a tubular passage, and unitary means for delivering air under pressure to the interior of the fuel fuel vaporizer to the interior of `the burner pot.

' deliver vaporized fuel from the interior of the fuel vaporizer to the interior of the burner pot, and unitary means for delivering air to the interior of the fuel vaporizer-and, through said air inlet apertures, to the interior of the burner pot, including an air chamber having a portion surrounding said burner pot, and shutter means adapted to vary the rate-oi flow of air from said air chamber to the interior of said fuel vaporizer.

.4. In a generator burner, a fuel vaporizer, havingan imperforate side wall and adapted to hold a substantial volume of liquid fuel, a burner pot having a circumferential wall and an open end, said circumferential wall having a plurality of air inlet apertures located at various distances from said open end, a tubular passage adapted to deliver vaporized fuel from the interior of the fuel vaporizer to the interior of the burner. pot, and unitary means for delivering air to the inv terior of the fuel vaporizer and, through said air fuel and since it serves as a chamber in 'which f a gaseous fuel is generated by combustion taking place in the generator chamber i. The chamber l acts as a generator chamber. Similarly, I employ the term air chamber 'or air chamber element of the element 4, which serves to deliver air both to the generator chamber and to the .burner chamber, asv will be clear from Figure 2.

I claim:

1. In a generator burner. a fuel vaporiz'er having au imperforate vside wall and adapted to hold a substantial body oi liquid fuel, a combustion inlet apertures, to the interior of the burner pot, including an air chamber having a' portion surrounding said burner pot, and a fan adapted to deliver air under pressure to the interior of said air chamber and means for actuating said' fan..

5. In a self-contained generator burner, a fuel t vaporizing chamber, having an imperforate side wall and adapted to hold a substantial body' of liquid fuel, an air chamber mounted on the top of said vaporizing chamber, a burner pot having an open end and a circumferential wall with a plurality of air inlet apertures located at various distances from said open end. said burner pot being partially surrounded by said air chamber. l

terior of said air chamber and means for actuating said fan.

6. In a self-contained generator burner, aiuel vaporizing chamber having an imperforate side wall and adapted to hold a substantial body of liquid fuel and adapted to serve as a base for the burner as a whole, an air chamber mounted on the top of the vaporiaing chamber, a horizon-V tally axised burner pot having an open end and a circumferential wall with a plurality oi' air inlet apertures located at various distances from said open end, said burner pct and said apertures/ being surrounded by said air chamber.. with said open end exposed, a tubular passage adapted to deliver vaporized fuel from the interior of the vaporlzing chamber to the interior of the burner pot, an air delivery passage extending from the' interior of the air chamber to the interior oi the vaporizing chamber, means foradjustablyconytrolling the rate of new through said passage to \the vaporizing chamber and means for deliverv ins air under pressure to the interior of said air chamber including a fan mounted on said air chamber and means for actuating it.

'1. In a generator burner, a fuel' vaporzer having an imperforate side wall and adapted to hold a substantial body of liquid fuel, a combustion chamber, means for delivering vaporized fuel from the interior of the iuel vaporizer to the interior ofy the combustion chamber, includinga 

